Is B25k ok when B20k is Listed?

[joelorigo]

Putting a Tayda order together for a TS10 inspired circuit which lists B20k for the Tone pot. Currently Tayda is out of B20 but has B25k. Is that close enough?

 

[owlexifry]

Putting a Tayda order together for a TS10 inspired circuit which lists B20k for the Tone pot. Currently Tayda is out of B20 but has B25k. Is that close enough?

yes it is.
do it.

 

[Hirti]

I think some Tubescreamer variants also use a W20k, you could use that instead

 

[joelorigo]

I think some Tubescreamer variants also use a W20k, you could use that instead

Thanks, they were out of those yesterday also. At least the type I was hoping to buy.

 

[joelorigo]

yes it is.
do it.

Thanks.

 

[MichaelW]

DM me, I can send you a W20k.

 

[joelorigo]

While I'm at it, how important is a JRC4559 vs a JRC4558 in a Tim circuit? Any at all?

 

[MichaelW]

While I'm at it, how important is a JRC4559 vs a JRC4558 in a Tim circuit? Any at all?

Not much but I can send you one of those as well.

 

[joelorigo]

Not much but I can send you one of those as well.

Thank you! I will DM you.

 

[joelorigo]

Sort of the topic. The doc says a "ICL7660SCPA." I have a "ICL7660SCPAZ," is that the same thing? What's the deal with ICs having similar names like the build doc listing "JRC4558" and being able to use the "NJM4558D?"

 

[KR Sound]

Usually manufactures or packaging differences. It's a 4558 but made by 'x' or it's a surface mount, or it's suited for colder and hotter temps, etc.

When in doubt, check the datasheets (Z = lead free)

https://www.renesas.com/us/en/document/dst/icl7660-datasheet

 

[brightlight]

Putting a Tayda order together for a TS10 inspired circuit which lists B20k for the Tone pot. Currently Tayda is out of B20 but has B25k. Is that close enough?

I feel your pain, I also had a lot of out of stocks on pots from Tayda. I usually use alpha, but a few I was able to settle for the Tayda version and they worked fine. I also just built an XC Phase which calls for a C500k pot and I accidentally ordered lug ones instead of PCB leg ones. I just wired the whole thing up with the same wire I use for any other offboard components and it worked like a charm. Took about 2 minutes of extra work and I saved money on buying more pots + paying shipping again. So there's an option for ya since lug ones tend to stay in stock longer than PCB ones.

 

[joelorigo]

Yes, now that I’m thinking about it, I was being picky and wanting the Alpha brand with the PCB pins. And that’s because early on I heard they were good pots so I didn‘t want to risk using a lower quality part. It’s possible I could have gotten on with lugs, or the tayda one. It’s the same thing with box capacitors. I heard that the red WIMA brand were good quality at some point so I’ve tried to stick with them, but it isn’t always possible.

 

[owlexifry]

Yes, now that I’m thinking about it, I was being picky and wanting the Alpha brand with the PCB pins. And that’s because early on I heard they were good pots so I didn‘t want to risk using a lower quality part. It’s possible I could have gotten on with lugs, or the tayda one. It’s the same thing with box capacitors. I heard that the red WIMA brand were good quality at some point so I’ve tried to stick with them, but it isn’t always possible.

ive made the 'error' of purchasing tayda brand pots so many times that ive learned that it really doesn't matter. at all.

if there's anything to steer clear of:
- don't even think about putting CTS pots near an amplifier.
what a load of bs those have been for me. (replaced with alphas - problems solved)

 

[joelorigo]

Good to know!